Confident Bolt focused on Moscow

Usain Bolt insists it is very important that he regains the 100m world title after being disqualified on his last appearance at the World Championships in Daegu.

Bolt won his first world title in 2009, setting the world record with a blistering 9.58sec in Berlin, but false-started in the final two years later, leaving fellow Jamaican Yohan Blake to claim the title.

And the six-time Olympic champion, who heads to Moscow as the overwhelming favourite, is determined to top the podium on August 11.